Home / 78,952,821.60-118,429,232.40-61,014,799.20

Finding the Fourth Proportional to 78,952,821.60, 118,429,232.40 and 61,014,799.20

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Solution

The fourth proportional to 78,952,821.60, 118,429,232.40 and 61,014,799.20 is: 91,522,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,952,821.60 : 118,429,232.40 = 61,014,799.20 : x
  2. Step 2: Convert to fraction form
    78,952,821.60/118,429,232.40 = 61,014,799.20/x
  3. Step 3: Cross multiply
    78,952,821.60x = 118,429,232.40 × 61,014,799.20
  4. Step 4: Simplify right side
    78,952,821.60x = 7,225,935,834,296,135
  5. Step 5: Solve for x
    x = 7,225,935,834,296,135/78,952,821.60
  6. Step 6: Final answer
    x = 91,522,198.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.